Q5. Figure 2 shows the mass spectrum of the same compound from an El source and a Cl source. (a) Which mass spectrum would be best for determining the molecular mass of the compound? Why? (b) Which mass spectrum would be best for determining the chemical structure? Why? (c) The El source was a pulsed source used with a TOF mass analyzer. If the flight tube were 1.0 m long and the accelerating volt age were 3000 V, what would the flight time be for the ion at m/z = 58? Relative abundance 100 80 60 40 20 0 0 50 58 69 79 100 150 200

Q5. Figure 2 shows the mass spectrum of the same compound from an El source and a Cl source. (a) Which mass spectrum would be best for determining the molecular mass of the compound? Why? (b) Which mass spectrum would be best for determining the chemical structure? Why? (c) The El source was a pulsed source used with a TOF mass analyzer. If the flight tube were 1.0 m long and the accelerating volt age were 3000 V, what would the flight time be for the ion at m/z = 58? Relative abundance 100 80 60 40 20 0 0 50 58 69 79 100 150 200

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter21: Surface Characterization By Spectroscopy And Microscopy

Section: Chapter Questions

Problem 21.5QAP

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